I. Morphological characteristics Dandelion is a perennial herb. Its root is conical and slightly curved, with a length of 4- 10 cm and a brown surface. Its leaves are lanceolate, sometimes pinnately divided, and the lobes at the top are relatively large, mostly triangular, with serrated edges. Its scape is about 10-25 cm high, the upper part is purple, with white fur, the flower is head-shaped, the tongue-shaped flower is yellow, and the back has purple stripes. Achenes, dark brown in color, less than 5 mm in length, with white crown hairs on them, can flutter with the wind.

Second, the growth environment Dandelion is widely distributed in China, from north to northeast and north China, south to southwest and south China, and can also be seen in Central China. It mainly grows in hillside grassland, fields, roadsides and river beaches. It has strong adaptability. Whether it is hot or cold, wet or dry, it can grow healthily.

Third, the maintenance method 1, soil: dandelion does not have high requirements for soil. Like many plants, it grows well in sandy loam with loose soil and rich humus.

2. Illumination: Adequate illumination contributes to the growth of dandelion, and it can also tolerate strong light and develop in summer.

3. Watering: Dandelion prefers humid environment, so it must be watered frequently during the growth period to keep the basin moist and not dry for a long time.

4. Fertilization: If dandelion is planted on a large scale, sufficient base fertilizer must be applied. Liquid fertilizer and high-efficiency nitrogen fertilizer should be supplemented at seedling stage, and nitrogen fertilizer should be the main growth stage.

Fourth, pictures.